/**
 * Copyright 2011-2013 FoundationDB, LLC
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *     http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/* The original from which this derives bore the following: */

/*

   Derby - Class org.apache.derby.impl.sql.compile.NonStaticMethodCallNode

   Licensed to the Apache Software Foundation (ASF) under one or more
   contributor license agreements.  See the NOTICE file distributed with
   this work for additional information regarding copyright ownership.
   The ASF licenses this file to you under the Apache License, Version 2.0
   (the "License"); you may not use this file except in compliance with
   the License.  You may obtain a copy of the License at

      http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.

 */

package com.bj58.sql.parser;

import com.bj58.sql.StandardException;

/**
 * A NonStaticMethodCallNode is really a node to represent a (static or non-static)
 * method call from an object (as opposed to a static method call from a class.
 */
public class NonStaticMethodCallNode extends MethodCallNode
{
    /*
    ** The receiver for a non-static method call is an object, represented
    ** by a ValueNode.
    */
    JavaValueNode receiver; 

    /**
     * Initializer for a NonStaticMethodCallNode
     *
     * @param methodName    The name of the method to call
     * @param receiver      A JavaValueNode representing the receiving object
     * @exception StandardException     Thrown on error
     */
    public void init(Object methodName, Object receiver) throws StandardException {
        super.init(methodName);

        /*
        ** If the receiver is a Java value that has been converted to a
        ** SQL value, get rid of the conversion and just use the Java value
        ** as-is.    If the receiver is a "normal" SQL value, then convert
        ** it to a Java value to use as the receiver.
        */
        if (receiver instanceof JavaToSQLValueNode) {
            this.receiver = ((JavaToSQLValueNode)receiver).getJavaValueNode();
        }
        else {
            this.receiver = (JavaValueNode)
                getNodeFactory().getNode(NodeTypes.SQL_TO_JAVA_VALUE_NODE,
                                         receiver,
                                         getParserContext());
        }
    }

    /**
     * Fill this node with a deep copy of the given node.
     */
    public void copyFrom(QueryTreeNode node) throws StandardException {
        super.copyFrom(node);

        NonStaticMethodCallNode other = (NonStaticMethodCallNode)node;
        this.receiver = (JavaValueNode)getNodeFactory().copyNode(other.receiver,
                                                                 getParserContext());
    }

    /**
     * Prints the sub-nodes of this object.  See QueryTreeNode.java for
     * how tree printing is supposed to work.
     *
     * @param depth     The depth of this node in the tree
     */

    public void printSubNodes(int depth) {
        super.printSubNodes(depth);
        if (receiver != null) {
            printLabel(depth, "receiver :");
            receiver.treePrint(depth + 1);
        }
    }

    /**
     * Accept the visitor for all visitable children of this node.
     * 
     * @param v the visitor
     *
     * @exception StandardException on error
     */
    void acceptChildren(Visitor v) throws StandardException {
        super.acceptChildren(v);

        if (receiver != null) {
            receiver = (JavaValueNode)receiver.accept(v);
        }
    }
}
